Tire for wheels.



No. 640,85I.

Patented 1an. 9, |900.v 0. J. M. ANCORA.

TIRE FDR WHEELS.

(A'pplication filed Oct. 14, 1897.)

(No Model.)

we Nonms warms co. PHoTaLmmv. wAsnmaroN. w. c.

NITED f 'STATES PATENT TIRE AFOR WHEELS.

SPECIFICATION forming part of Letters Patent N0. 640,851, dated January 9, 1900.

Application filed October 14, 1897. 4Serial No. 655,101. (No model.)

T0 a/ZZ whom. it may concern:

Be it known that I, OLAF J. M. ANCORA, of Milwaukee, in the county of Milwaukee and State of Wisconsin, haveinvented a new and useful Improvement in Tires for Wheels, of which the following is a description, reference being had to the accompanying draw ings, which are a part of this specification.

My invention has relation to improvements in tires and rims for wheels, more especially for bicycle-wheels.

The object is to provide a construction in which the tire is most effectually protected against puncture and one at the same time in which if a puncture by any possibility occur ready access can beobtained to said puncture for the purpose of repair.

Furthermore, the invention provides for a more convenient location for the valve and contemplates also an improved form of rim of such construction as to prevent cutting the sides of the tire should the machine be ridden when the tire is deflated.

With the above objects in view the invention consists of the devices and parts or their equivalents, as hereinafter more fully set forth.

In the accompanying drawings, Figure 1 is a sectional View of a tire equipped with my improvements. Fig. 2 is a detail View of a filling for the space between the inner and outer portions of the tire, at the tread thereof. Fig. 3 is a view of detail.A Fig. 4 is a cross-section ofa modified form. Figs. 5 and 6 are cross-sections of other modified forms. Figs. 7 and S are fragments of the tread of the tire, showing the preferred form of constructing said tread.

The tire in all the several forms is composed of inner and outer portions 9 and 10, respec-v tively, said inner portion constituting an in ner closed tube and the outer portion an outer covering connected with the inner tube at a desired point. This construction is preferably obtained by dividing the rubber or material composing the tire through its `thickness, said division beginning at-'a point indicated by the numeral l1 in the several figures of the drawings and extending thro ugh the end of the rubber or other material composing the tire. The terminal end forms an pverlapping tongue l2, which islocated Where the rim of the wheel is connected to the tire.

In the construction shownin Figs. 1, 4, and 6 the overlapping tongue 12 is located where the rim of the wheel is connected to the tire.

In the construction shown in Figs. 4 and 6 the overlapping tongue is formed on its under side with a series of ribs 13, and the surface. immediately below the 'overlapping tongue is provided with similar ribs, forming a series of recesses 14 to receive said ribs 13. By the engagementof the ribs 13 of the tongue with the recesses the two portions of the tire are held against lateral separation and at the same time in Figs. 1 and 6 perform the important function of providing a perfectly air-tight chamber 15.

In the forms of construction illustrated in Figs. 1 and 6 the outer portion 10 of the tire is sufficiently greater in diameter than the inner portion 9 to form the space or chamber 15 between the sides and bottoms of said two portions, providing practically inner and outer tubes. These are both adapted to be iniiated with air, so that two pneumatic tubes are provided. It is desirable and advisable that the double pneumatic tire be constructed in such manner that the connection of the cover with theinner closedtube-thatis to say, the beginning of the dividing-point ll-must be located at such a place as to be eitherjustin- .side of the rim of the wheel or in line with the edge of the rim. By thus making the connection between the inner closed tube and the outer cover within the rim of the wheel or on a line with the edge of the rim the pressure of the air in the chamber 15 prevents splitting of the tire. For the purpose of inatingthese tubes I prefer to use peculiar forms of valve mechanism. These valve mechanisms are only shown in Figs. 1 and 4, but it will be understood that similar valve mechanisms are also employed in Figs. 5 and 6. Each valve-casing is composed of two sections-viz., a tubular eXteriorly-threaded portion 16 and an outer interiorly-threaded cap-piece 17. The cap-pieces are turned onto the outer ends of the tubes V16, so'as to retain the air. When,

however, it is desired to iniate, these caps IOO . ever is left between the inner and outer por- 'the wheel.

tions 9 and 10 and the meshing corrugations at the joint are omitted. construction that the inner part of the tire is a closed tube and the outer part is curled continuously around the inner part. It will of course be understood that. the inner part of this form of construction may be made elastic, if desired, and the inner surface of the outer part provided with lugs, lling, as in Fig. 4.

In Fig. l one form of wheel-rim is shown. This rim is indicated by the numeral 28 and consists of a hollow metallic body having a fiat outer side which is adjacent to a corresponding iiat outer Surface of the overlapping tongue 12. The inner side of thisrim is preferably rounded or convex, and the ends of the rim are also rounded and, if preferred, tubular,`as indicated at 29 29. These tubular ends are adjacent to the side edges of the overlapping tongue 12 and together with the dat outer side of the rim form a recess for the reception of the tire. The outer dat side of the rim is provided with an opening 30, which permits the spokes 31 of the wheel to he passed therethrough and secured through the inner side of the rim, as clearly shown in Fig. 1. In order to assist the ribs 13 in finding their proper place for meshing with the recesses and to relieve the wood or .metal of the rim of all splitting strain (which strain exists in all so-called clencher-tires) and to prevent the overlapping tongue from lateral separation, I provide a plate 32, which is inserted and held fast in a slit 33, formed in the outer edge of the tongue 15. Any desired number of these plates around the tire can be provided. The outer portion of this plate is bent downwardly or concaved, asindicated at 34, to form a pocket for the reception of one of the rounded ends of the rim of It is evident from this construction that even should the intermeshing corrugations become disengaged the engagement of the rounded end of the rim with the pocket 0r concavity 34 of the plate 32 will prevent the separation of the tongue 12 from the re- Inaining portion of the tire. The rim shown in Fig. 4 and indicated by the numeral 35 is similar in form to the rim shown in Fig. 1. Instead of being hollow, however, it is solid and made of wood, laminated or of'one piece, or any other desirable 1naterial,being formed on its under side with a recess 3b' to receive the squared portion of the tongue l2.

The rims indicated in Figs. 5 and 6 and designated by the numerals 37 37 are the ordinary forms of rims now commonly employed on bicycle-wheels, having the out-er concave surface to receive the similar contour of the tire instead of being provided with a recess similar to the recess 36 of Fig. 4 to receive a squared portion of the tire. The plates 32 shown in Figs. 5 and 6 owing to the somewhat-different form of rim shown in said iig- It is also of such ures, are shaped slightly diierent from those illustrated in Figs. 1 and 4 in order to conform to the shape of the rims 37. They are, however, in all essential particulars substan-` tially like those shown in Figs. 1 and 2 and subserve a similar function.

In Fig. 1 I have shown in both the inner and outer portions 9 and 10 an intermediate layer of canvas or similar material, whereby both the inner and outer portions are ren= dered non-elastic. These layers are indicated, respectively, by the numeral 38 38. I also show these inner and outer layers in Figs. 5 and 6. In Fig. 4 I only show the layer 38 in the outer portion 10, so that the inner portion is rendered elastic, While the outer portion is almost rendered non-elastic. It will also be understood that said inner portion may be rendered non-elastic, if desired.

I wish it understood that I do not intend to limit myself to merely one layer for securing the non-elasticity, but a plurality of layers may be emploved, if desired.

If desired, the meshing ribs in Figs. I, 4, and 6 or the projecting edge of Fig. 5 can be pasted together with any suitable paste, and this will enable the parts to be easily taken apart for repairing a puncture, &c., without disturbing the tire. A

Figs. 6, 7, and S represent a preferred inanner of constructing the tread of the tire. This construction is designed to secure a iirm grip by the tread of the tire on the surface traveled over and at the same time act as a means for throwing the dirt and mud from off the tread. Fig. 6 shows a fragment of the tread of the tire, illustrating one means, which consists of forming said tread with a series of rectangular or square projections 39, said projections necessarily leaving a series of spaces therebetween. As the wheel is revolved these profjections are compressed and forced together without leaving a space at any point, making it practically a continuous smooth surface, and immediately after contact with the surface traveled over they resume their normal shape and in doing so tend to throw off any mud, dirt, or adhering particles, so that the tread of the wheel is self-cleaning. In the form illustrated in Fig. 8 each alternate pro jection is of a different shape. One projection 40 is circular and the next projection 4I square or rectangular, with the sides of the square or rectangle concave. Fig. 6 is a section through a tire having the tread formed with the projections shown in Fig. 8. It is obvious that the projections 40 41 of Fig. 8 will subserve the same' function as the projections 39 of Fig. 7.

I wish it understood that in case of the constructions shown in Figs. 1, 4, and 6, where the intermeshing corrugations and teeth are employed, if desired the double pneumatic tire can be formed by having the outer cover made separate from the inner tube but I prefer in these forms of construction to have the IOO cover connected with the inner closed tube, as this arrangement is more convenient and there is less danger of getting out of order.

My tire is preferable to other kinds of double-tube tires on account of the ease with which most punetures can be repaired Without removing the tire from the rim, and also it is eminently adapted for wood rims, which are considerably lighter than steel. 1vVood rims are not so suitable for most of the detachable double-tube tires, owing to the strong outward strain tending to break the rim in its weakest section, whereas my tire construction readily strengthens the rim by gripping it very tightly when inated,thus acting much in the same way as the iron tire of a carriage- Wheel.

By having` the valve arranged on the side of the tire, as in my improved construction, it is possible to repair a puncture of the inner tube of the tire without removing the tire from `the rim. (See Fig. 4.) In order to accomplish this, it is only necessary to unroll the tire, letting the squared part remain in connection with the rim, rolling the inner tube out, and the tire can then be reiniiated and the puncture found. The same advantageous arrangement is secured by placing the valve on the left side of the tire, (shown in Figs. 5 and 6,) thus doing away with the trouble of unscrewing the Wheel and pasting the tire again after repairing.

In the operation of inflating my tire the inner tube must first be inflated. The pressure of the air in the inner tube will thus make the connection between the overlapping edge of the cover and the part of the tire below an air-tight closure. The compartment between the inner closed tube and the cover can then thereafter be inliated or both compartments of the tire can be inflated at once.

In the operation of repairing the tire the inner tube should be rolled outside of the,

cover and deflated. The puncture can then be readily found in the usual way by dipping the inner tube in water, circ. f

What I claim isl. A tire consisting of an inner closed tube and an outer cover connected therewith at one place, but elsewhere divided or separated therefrom and rolled around the inner tube, the end of said outer cover overlapping the inner tube under the rim of a wheel.

2. The combination with a tire for wheels consisting of an inner closed tube and an outer cover connectedtherewith at one place, but elsewhere divided or separated therefrom and rolled around the inner tube, the end of said therefrom and rolled around the inner tube,

under side with ribs adapted to engage regis- Y tering recesses in the portion of the tire beneath the same.

e'. A tire for Wheels, consisting of an inner elastic portion and an outer substantially non-elastic portion, said portions comprising an inner closed tube and an outer cover connected therewith at one place, but elsewhere divided therefrom and rolled around the inner tube, the end of said outer cover overlapping the inner tube under the rim of a Wheel.

5. The combination, of a tire composed of inner and outer portions, a plate secured to the outer portion, said plate formed with a concavity or pocket, and a rim having a part thereof fitting in said concavity or pocket.

6. A tire comprising inner and outer portions, the end of the outer portion provided on its under side with depending teeth, and the upper surface of the inner portion beneath the-end of the outer portion provided with recesses to receive the teeth, a plate secured to said terminal portion, said plate formed with a concavity or pocket, and a rim having a part thereof fitting said concavity or pocket.

7. The combination of a tire consisting of an inner closed tube and an outer cover connected therewith at one place, but elsewhere divided or separated therefrom and rolled around the inner tube, the end of said outer coverformed with a squared and shouldered portion, and a rim provided with a recess similar in shape to and adapted to receive the squared and shouldered portion of the end of the cover.

8. The combination with a tire comprising inner and outer portions, the end of the outerA portion formed with a squared and shoul dered projection, a plate secured to the outer portion, said -plate formed -with a concavity or recess, and 'a hollow rim provided with a recess similar in shape to and adapted to receive the squared and shouldered portion, and said rim also provided with rounded ends iitting the concavity or pocket of the plate.

9. A tire consisting of an inner closed tube and an outer cover connected therewith at one place, but elsewhere divided or separated therefrom and rolled around the inner tube, the end of said outer cover overlapping the inner tube under the-rim of a wheel, the two portions of the tire forming an inner and an outer tube, the outer'tube being of such circumference as to provide a compartment between it and theinner tube.

10. The combination, with a tire consisting of an inner closed tube and an outer cover connected therewith at one place, but else- Where divided or separated therefrom and IOC IIC

outer cover overlapping the inner tube under the rim of a wheel, the two portions of the tire forming an inner and an outer tube, the

outer tube being of such circumference as to provide a compartment between it and the inner tube, of mechanism leading, respectively, to said inner and outer tubes, whereby said tubes may be iniiated, so as to form a double pneumatic tire.

11. The combination, with a tire consisting of an inner closed tube, and an outer cover connected therewith at one place, but elsewhere divided or separated therefrom and rolled around the inner tube, the end of said outer cover overlappin g the inner tube under the rim of a wheel, the two portions of the tire forming an inner and an outer tube, the outer tube being of such circumference as to provide a compartment between it and the inner tube, and said outer tube being provided on its inner surface at the tread with lugs or projections located a desiredY distance apart, and the end of the outer portion being detachably secured to the inner portion, of a filling inserted between the two portions of the tire and confined between the two lugs.

12. The combination, with inner and outer tubes, the outer tube being of such circumference as to leave a compartment between it and the inner tube, lugs or projections located within the compartment and at the tread and arranged a desired distance apart, of a ring of woven-wire filling arranged in said compartment and confined between the lugs.

13. A tire consisting of an inner closed tube and an outer cover connected therewith at .one place, but elsewhere divided or separated therefrom and wound in a continuous cover around the inner closed tube, the end of said outervcover overlapping the inner tube under the rim of a wheel.

14:. A tire for wheels consisting of an inner substantially non-elastic portion and an outer substantially non-elastic portion, said portions comprising au inner closed tube and an outer cover connected therewith at one place, but elsewhere divided therefrom andrrolled around the inner tube, the end of said outer cover overlapping the inner tube under the rim of a wheel.

15. A tire consisting of an inner closed tube and an outer cover connected therewith at one place, but elsewhere divided or separated therefrom and rolled all around the innery closed tube, which is thereby inclosed by the outer cover.

16. A tire consisting of an inner closed tube, and an outer cover connected therewith at one place, but elsewhere divided or separated therefrom and rolled-around the inner closed tube, which is thereby inclosed, by the outer cover, and means for secu rin g the outer cover to the rim.

17. A tire consistingof an inner closed tube and an outer cover connected therewith at one place, but elsewhere divided or separated therefrom and rolled around the inner tube,

one end of said outer cover overlapping the inner tube and the connection between the inner closed tube and the outer cover.

182 A tire consisting of an inner closed tube and an outer cover connected therewith at one place, but elsewhere divided or separated therefrom and rolled around the inner tube underthe rim of a wheel, means for preventing the separation of the end of the cover from the portion of the tire below the same, and means for connecting the outer cover to the rim.

19. A tire consisting of an inner closed tube and an outer cover connected therewith at one place, but elsewhere divided or separated therefrom and rolled around the inner tube, the point of connection to the outer cover being at such a place as to be within or in line with the edge of the rim, and the end of said outer cover overlapping the inner tube under the rim of a wheel.

20. The combination, with a tire consisting of an inner closed tube and an outer cover connected therewith at one place, but elsewhere divided or separated therefrom and rolled around the inner tube, the end of said outer cover overlapping the inner tube under the rim of a wheel, said outer cover thereby forming a tube, but adapted to be opened on one side under the rim of a wheel, of means for preventing the separation of the end of the outer cover from the portion of the tire below the same.

21. A double pneumatic tire comprising an inner closed tube and an outer portion or tube, both being inflatable, the outer portion being provided on its under side with ribs or projections and the inner closed tube provided with recesses to receive the ribs or projections.

22. The combination, of a tire consisting of an inner' closed tube and an outer cover connected therewith at one place, but elsewhere divided or separated therefrom and rolled around the inner tube, the end of said outer cover overlapping the inner tube under the rim of a wheel, and a valve, said valve located at the side of the tire.

23. The combination, of a tire consisting of an inner closed tube and an outer cover connected therewith at one place, but elsewhere divided or separated therefrom and rolled around the inner tube, the end of said outer cover overlapping the inner tube under the rim of a wheel, means for preventing the separation of the end of the outer cover from the portion of the tire below the same, and a valve located at the side of the tire.

24. The combination, with a tire consisting of an inner closed tube and an outer cover connected therewith at one'place, but elsewhere divided or separated therefrom and rolled around the inner tube, the end of said outer cover overlapping the inner tube under the rim of a wheel, means for preventing the separation of the outer cover from the portion Vof the tire below the same, means for having the outer cover in fixed connection to the rim,

IOO

rio

and a Valve ocated at the side of the tire, the In testimony whereof ax my signature inneiI closed tube being thereby adapted to in presence of two witnesses.

be opened or unrolled for the purpose of rel ,T

pairing the same, Without the necessity of re- OLAF 'I' M' Ab CORA' 5 moving the tire from the rim of a wheel, or

o removing the cap from the valve, or of re- Vimesses A. L. MORSELL,

moving the Valve from the rim.k i ANNA V. FAUST. 

